Fail-safe electromagnetic brakes
Accurate and reliable braking when power is disengaged to guarantee safety
Fail-safe brakes automatically stop movement when power is removed and are beneficial in applications where quick and accurate braking or holding is required. When the power is re-engaged, the brake will release allowing the shaft to rotate or movement to continue.
Fail-safe brakes generate torque through the clamping together of friction surfaces, the method of clamping determines the two available types as spring applied or permanent magnet brakes. It has been common place to apply spring applied brakes to static holding applications (rear of motors) and permanent magnet brakes to frequent on-off applications (rear of servo motors).
Spring applied brakes use multiple springs and a magnetic coil to clamp the rotor (with friction surfaces), when power is applied to the coil the magnetic force pulls an armature plate away from the friction surfaces. The springs in the coil are compressed and the rotor is free to rotate.
Permanent magnet brakes use a permanent magnet disc to generate magnetic energy which clamps the friction surfaces together against a stationary housing to give the required braking torque. When power is returned to the brake coil, the armature plate is released the shaft is free to rotate.SG Transmission is able to offer three types of fail-safe brakes namely, spring applied, permanent magnet and permanent magnet toothed brakes.
- Power off brake engagement
- Horizontal and vertical mounting
Contact an expert to discuss your backlash free solution
"*" indicates required fields
Our fail-safe brake solutions
Permanent magnet power off brakeLearn More
Permanent magnet power off brake
Fail-safe, zero backlash permanent magnet power off brakes for use in high precision, high power applications.
Spring applied power off brakeLearn More
Spring applied power off brake
Fail-safe, spring applied power off brakes for use in demanding applications. Designed with power-off brake engagement, engaging when electrical power supply is removed.
Read the latest company news, customer success stories and industry blogs from our leading experts on the topic of electromagnetics and the future of automation.
SG Transmission Awarded Environmental Management Standard ISO 14001
Stephenson Gobin (SG Transmission’s parent company) has successfully passed its first standalone Environmental Management System ISO 14001:2015 certification audit.Read company news
SG Transmission is exhibiting at Smart Production Solutions 2022
SG Transmission is exhibiting at Smart Production Solutions 2022. Showcasing our range of brakes, clutches and holding magnets. Visit us in Hall 4 Stand 456.Read company news
SG Transmission launches new German website
SG Transmission have unveiled a new German website to expand its reach in European market.Read company news